Police find that everyone had a motive for the murder of a wealthy woman.
Two sailors dock in London in search of a good time. But when one of them fatally stabs a man during a scuffle in a bar, the pair flee the scene, commandeer a boat and take the three women on board hostage as they try to outrun the law.
A clerk sees his big chance to escape a humdrum existence, but his resolve is tested as many unexpected obstacles arise.
